Biodiversity definitions

Question 1

Biodiversity (1 mark)

Answer 1

A measure of the variation found in the living world, it summarises the variety of living species and factors affecting them within an ecosystem.

Question 2

Habitat

Answer 2

The area in which an organism lives with conditions and features that the organism is adapted to.

Question 3

Species

Answer 3

A group of organisms that can freely interbreed to produce fertile offspring

Question 4

Habitat Biodiversity

Answer 4

The range of habitats in which different species live.

Question 5

Species Biodiversity

Answer 5

The range of organisms found in a habitat. This includes both species evenness and species richness.

Question 6

Genetic Biodiversity

Answer 6

Variation between individuals belonging to the same species.

Question 7

Allele

Answer 7

A version of a gene

Question 8

Locus

Answer 8

The position of the allele (gene) on a chromosome.

Question 9

Polymorphic gene locus

Answer 9

A locus that has more than two alleles.

Question 10

Simpson’s index of biodiversity

Answer 10

A measure of the diversity of a habitat

Question 11

Species evenness

Answer 11

A measure of how evenly represented the species are.

N.B. the more evenly represented the species aka each species has 20.. more diverse (not dominated by one species)

Question 12

Species richness

Answer 12

A measure of the number of species present in a habitat

N.B. Does not take into account no. of individuals within each species.

Question 13

Keystone species

Answer 13

One that has disproportionate effect upon its environment relative to its abundance.

Question 14

Soil depletion

Answer 14

The loss of soil fertility caused by removal of minerals by continuous cropping.

Question 15

Conservation IN SITU

Answer 15

Carrying out active management to maintain the biodiversity in the natural environment.

Question 16

Marine conservation zone

Answer 16

Areas of the sea set aside to conserve the diversity of species and habitats.

Question 17

Wildlife reserves

Answer 17

Areas set aside for the conservation of species or habitats.

Question 18

Conservation EX SITU

Answer 18

Conservation outside the normal habitat of the species

Question 19

CITES

Answer 19

the Convention on International Trade in Endangered Species

Question 20

Countryside Stewardship Scheme

Answer 20

A scheme to encour

Question 21

Countryside Stewardship Scheme

Answer 21

A scheme to encourage farmers and other landowners in a way that promotes conservation.